Barrel-hoop machine



(No Model.)

G. S. FOSTER.

BARREL Hoor MAGHINE.

No. 346,035. Patented July 20, 1886.

N. Patins, mmumamphen Mmmm", mc.

UNITED STATES APATENT OFFICE.

GILBERT S. FOSTER, OF CONCORD, NEV HAMPSHIRE.

BARREL-HOOP MACHINE.

SPECIFICATION forming part of Letters Patent No. 345,035, dated July 20,1886.

Application filed April 10, 1886. Serial No. 198,466. (No model.)

T0 all whom, it may concern:

Be it known that I, GILBERT S. FosTEE, a citizen of the United States,residing` at Concord, in the county of Merrimac and State of NewHampshire, have invented certain newA and useful Improvements in I-Ioop-Planing Machines, of which the following is a specifi cation.

The object of the present invention is to provide a machine for dressinghoops which have been previously sawed or cut from poles, and leavingthem of a more uniform thickness than has heretofore been accomplishedby machines of this character. These results are attained by themechanism described in the following specification, and illustrated inthe accompanying drawings, forming part thereof, of which- Figure lrepresents a vertical sectional elevation, Fig. 2 being a detached planview of one ofthe adjustable roller-frames. Fig. 3 represents a planview of Fig. l; and Fig. ishows a sectional plan view of one of theweighted arms for holding one of the adjustable beds to its work and itsfrictional stud, which bears upon or against the planer-frame.

Similarlettersindicate corresponding parts.

The standards A A are secured equidistant from each other by suitabletransverse bars or rods, c. The cylinder or cutterhead B Y is mounted inthe vertical center of' either standard A A and driven by a belt-pulleyin the ordinary manner. A rigid pressure-bar, C, located back of thecutter-head, having its top surface about on aline with the circledescribed by the rotative course of the cutters, extends from one to theother of the standards A A, and is conveniently secured thereto. Frontand rear feed-rollers, respectively, D D', are mounted in bearings d d,fitting slots in the standards, the rolls D being rendered adjustable toor away from each other by means of a capscrew, d2, threaded to one ofthe said journal boxes d, and having its head resting against the other,and the cap-screw d3 performs the same service for the rollers D.

The rolls Egovern the thickness of thehoopssecured to and extending fromone to the other of the standards A A. The said frames Fare subjected toadditional tension over their weight, in the form of a weight attachedto the long arms thereof; or a spiral spring, H, may connect said longarm, or an arm, I, secured thereto, at some convenient point with thestandards A A.

The rolls E must be prevented from coming in Contact with thecutter-head, and a convenient means for attaining this result isillustrated by the ears i, .formed upon the arms I, and projecting overthe standards A A, and in order to cut or dress a hoop to any giventhick'- ness setscrews J are threaded to said ears 1J, so as to bearupon said standards A A, as shown. The tension upon the arms I may bevaried by the use of a tiiiirbuckle, K, threaded to rods L, and thusforming a connection of the said arms I with the standards.

Pressure is applied to the feed-rollers by the arms M, which are pivotedat one end to said standards, their under side being provided `with aboss, m, at the proper point to bear upon the journal-boxes, in whichthe uppermost front or rear rollers are mounted, and at or near theirfree end is mounted an adjustable block, N, a spiral spring, O,connecting said blocks with the standards, as shown in Fig. l.

Adjustable bedirons I?, having their forward end formed as at p, areswiveled to the rod Q, located underneath and a little to the rea-r ofthe cutter-head, and secured to and extending from one to the other ofthe standards A A. rIhe forward ends, p, curl up in front of thecutterhead, and the point of fulcrum Q must be such as to insure freemovement 0f the said ends p without liability of contact with saidcutterhead; Arms R are attached to the rear ends of said bed-irons, andweights S mounted IOO not come in contact with each other. Vhen it isdesired to adjust the knives on cutterhead, the rods L may be removedfrom the arms I, and the frames F be swung over and back out of the way.

In order that hoops passing through between the feed-rolls D and theroll E and bed-irons P maynot fail to be caught between the rollers D',suitable depending guides, X, are pivoted in the frames F,back of therolls E, their point of fulcrum being such that their overhanging topswill retain them in the position shown in the drawings, except whentheir lower ends are scraped by a passing hoop, when they will yieldslightly by its pressure. Another pur pose of these depending guides Xis to prevent all unnecessary Vibration of the hoop by the action ofthecutter-head with butlittle friction.

In passing a hoop through this machine the rollers E roll upon the barkside, and thus the cutters operate upon the smooth side. When knots areencountered by the said rollers, the hoop is suddenly forced downwardupon the bed-irons and the cutter-head, causing the former to trembleunder the tendency to rebound.

To remedy this difficulty friction-studs Y are interposed between thearms R and the stand ards, 'and held in place by a machine-screw passingthrough the arm and into said stud. If found desirable, a piece ofrubber or other elastic material, Q, may be inserted in the stud Y, ontowhich the screw may bear, as seen in Fig. 4, in which view the line AArepresents the inside line of the standards.

Having described my invention,what l claim, and desire to secure byLetters Patent of the United States, is-

1. The combination,with the cutter-head and the adjustablepressure-roller, of the weighted bed-iron having its bearing-facebeneath thc pressure-roller, said bed-iron having its upward throwlimited, and swinging down as the hoop passes between thepressure-roller and the cutter-head, as set forth. l

2. In a planing-machine, the combination, with the cutter-head andfeed-rollers, of automatic adjustable bed-irons and a centrallongitudinal partition rigidly secured between said bed-irons,substantially as and for the purpose set forth.

3. In a planing-machine, the combination, with the cutter-head,standards, and feed-rollers, of automatic adjustable bed-irons, acentral longitudinal partition rigidly secured between said bed-irons,and one or more frictional studs placed between said standards and thesaid bed-irons, and adapted to prevent unnecessary trembling of thelatter, as and in the manner specified.

4. In a hoop-planing machine, the combination, with the cutter-head andan automatic adjustable bed, of adjustable rollers located above thecutter-head, pivotal frames in which said rollers are mounted, andsuitable means whereby said rollers may be set relative to the minimumthickness required for a given hoop, as set forth.

5. The combination, with the cutter-head, the bed-iron, thepressure-roller, and the rear guide-rollers, of a depending guidepivoted in the rear of the pressure-roller and guiding the hoop betweenthe rear guide-rollers, as set forth.

6. The combination, with the cutter-heads, of the frames F, carrying thepressurerollers E and depending guides X, located in the rear of saidrollers, the arms I, provided with ears t' and setscrews J, threadedtherein, the rods L, connected by the turn-buckle K, and the spring II,as set forth.

7. The combination, with the cutter-head, of the front adjustableguide-rollers, the adjustable bed-iron, the rigid pressure bar orsupport C, the adjustable pressure-roller, the depending guide arrangedin the rear of the pressure-roller and above the bar C, and the rearadjustable guide-rollers, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GILBERT S. FOSTER.

Witnesses:

J. B. THURsToN. NATHANIEL E. MARTIN.

